Solution
1. Rxe6+ Kxe6 2. Ke3! Rxd3+ 3. Kxd3 +-
The point behind 1. Rxe6+ is to clear the e3-square for the king to attack the trapped black rook.
1. Rxe6+ Kxe6 2. Ke3! Rxd3+ 3. Kxd3 +-
The point behind 1. Rxe6+ is to clear the e3-square for the king to attack the trapped black rook.